Rep. Joaquin Castro, D-San Antonio, shared photos he took Monday evening after he and his colleagues completed their tour. The images showed some of the detainees and the cramped conditions at those facilities.

This moment captures what it’s like for women in CBP custody to share a cramped cell—some held for 50 days—for them to be denied showers for up to 15 days and life-saving medication. For some, it also means being separated from their children. This is El Paso Border Station #1. pic.twitter.com/OmCAlGxDt8

In one of the videos Castro shared on Twitter, he wrote "this moment captures what it's like for women in CBP Custody to share a cramped cell—some held for 50 days—for them to be denied showers for up to 15 days and life-saving medication. For some, it also means being separated from their children."

Castro said one of the women alleged that when she told authorities she was thirsty, an agent told her to drink water from the toilet.

Castro said he took photos and video inside the facility because "it's kept secret" from the public.

"The American people must see what is being carried out in their name," he said.

Conditions for asylum seekers have come under fire lately as immigration numbers swell.

A video obtained by The Associated Press on Monday showed a 12-year-old migrant girl talk to her attorney about the conditions of the facility.